typutil

README

type conversion utils

This is useful when dealing with json parsed types for example.

Documentation

Index

• Variables
• func AsBool(v any) bool
• func AsByteArray(v any) ([]byte, bool)
• func AsFloat(v any) (float64, bool)
• func AsInt(v any) (int64, bool)
• func AsNumber(v any) (any, bool)
• func AsString(v any) (string, bool)
• func AsUint(v any) (uint64, bool)
• func Assign(dst, src any) error
• func BaseType(v any) any
• func SetValidator[T any](validator string, fnc func(T) error)
• func SetValidatorArgs(validator string, fnc any)
• func Validate(obj any) error

Variables

var (
	ErrAssignDestNotPointer      = errors.New("assign destination must be a pointer")
	ErrAssignImpossible          = errors.New("the requested assign is not possible")
	ErrNilPointerRead            = errors.New("attempt to read from a nil pointer")
	ErrEmptyValue                = errors.New("validator: value must not be empty")
	ErrDestinationNotAddressable = errors.New("assign: destination cannot be addressed")
	ErrStructPtrRequired         = errors.New("parameter must be a pointer to a struct")
)

Functions

func AsBool

func AsBool(v any) bool

some helper functions related to numbers

func AsByteArray

func AsByteArray(v any) ([]byte, bool)

func AsFloat

func AsFloat(v any) (float64, bool)

func AsInt

func AsInt(v any) (int64, bool)

func AsNumber

func AsNumber(v any) (any, bool)

func AsString

func AsString(v any) (string, bool)

func AsUint

func AsUint(v any) (uint64, bool)

func Assign

func Assign(dst, src any) error

func BaseType

func BaseType(v any) any

BaseType attempts to convert v into its base type, that is if v is a type that is defined as `type foo string`, a simple string will be returned.

func SetValidator

func SetValidator[T any](validator string, fnc func(T) error)

SetValidator sets the given function as validator with the given name. This should be typically called in init()

func SetValidatorArgs

func SetValidatorArgs(validator string, fnc any)

func Validate

func Validate(obj any) error

Validate accept any struct as argument and returns if the struct is valid. The parameter should be a pointer to the struct so validators can edit values.